Aluminum hydroxide liquid-solid separating and drying device with multi-stage treatment function

Abstract

The utility model discloses a multistage treatment aluminum hydroxide liquid-solid separation drying device, and particularly relates to the technical field of aluminum hydroxide drying, which comprises a barrel, an air inlet pipe for inputting high-temperature hot air is fixedly connected to the bottom of the barrel, and an inner pipe is fixedly connected to the position, corresponding to the air inlet pipe, of the bottom of an inner cavity of the barrel. The top end of the inner pipe is fixedly sleeved with a stabilizing disc. Gas in the inner pipe enters the barrel through the spiral pipe, the gas in the barrel generates rotating force, input raw materials can generate rotating force conveniently, the time of the raw materials staying in the barrel is prolonged through the conical plate, blocky materials can be blocked into the through holes through the through holes, and the blocking effect is good. The block-shaped materials are scattered through rotation of the scraping plate and the shifting plate, when the scraping plate and the shifting plate are located on the top of the cone plate, the block-shaped materials fall on the top of the cone plate due to the fact that upward impact force of gas on the top of the cone plate is reduced, the block-shaped materials are scattered through shifting of the shifting plate, and the drying quality and effect are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminium hydroxide drying technical field, more specifically, the utility model relates to multistage processing's aluminium hydroxide liquid solid separation drying device. BACKGROUND

[0002] In the production process of aluminium hydroxide, the efficient realization of liquid solid separation from the slurry containing aluminium hydroxide and the full and uniform drying of the separated solid aluminium hydroxide are the key links to guarantee product quality and production efficiency. Aluminium hydroxide is a basic raw material necessary for the production of aluminium fluoride in the electrolytic aluminium industry, and its attached water content is 5%-10%. However, in the dry process of aluminium fluoride production, the attached water content of the raw material aluminium hydroxide must be less than 0.1% after drying, which can be used for production.

[0003] The traditional drying aluminium hydroxide device generally uses a rotary kiln or an air flow dryer to input hot air from the inlet pipe into the device at a suitable jet speed to contact and mix with the material for heating and drying, and then discharges the material and gas through the top discharge pipe and separates them through a separator to realize the discharge of the dried raw material. In the drying process, the gas directly carries the material to rotate and transport to the top. When the input material is in a block structure, the inside of the block material cannot be dried, which affects the uniformity of drying, resulting in incomplete drying and affecting the drying quality. Therefore, a multistage processing's aluminium hydroxide liquid solid separation drying device is proposed. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a multistage processing's aluminium hydroxide liquid solid separation drying device to solve the problems raised in the above background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a multistage processing's aluminium hydroxide liquid solid separation drying device, comprising a cylinder, the bottom of the cylinder is fixedly connected with an air inlet pipe for inputting high-temperature hot air, high-temperature gas is injected into the inner cavity of the cylinder through the air inlet pipe, the inner cavity bottom of the cylinder is fixedly connected with an inner tube corresponding to the position of the air inlet pipe, the gas flow rate entering the cylinder is reduced through the inner tube, the top end of the inner tube is fixedly sleeved with a stabilizing disc to improve the stability of the inner tube, three sides of the inner tube are fixedly connected with a spiral pipe, one end of the spiral pipe penetrates the wall of the stabilizing disc, the gas in the inner tube enters the inside of the cylinder through the spiral pipe, which makes the gas in the cylinder produce a rotating force, facilitating the rotation of the input material, improving the drying effect;

[0006] The top end inner cavity of the inner tube is fixedly connected with a multi-hole plate, the middle part of the cylinder is connected with a feeding pipe, the top of the cylinder is connected with an air outlet pipe, the top of the cylinder is fixedly connected with a motor, the output end of the motor is connected with a universal joint, the inner cavity of the cylinder is fixedly connected with a support rod and a conical plate, and the support rod is arranged on the top of the conical plate.

[0007] The surface of the conical plate is provided with through holes, and the middle part of the conical plate is provided with a rotating rod.

[0008] Preferably, the inner cavity diameter of the inner tube is larger than the inner cavity diameter of the air inlet pipe, the top end of the inner tube is higher than the top end of the spiral pipe, the bottom of the cylinder is fixedly connected with a plurality of support legs, and the top end of the air outlet pipe is connected with a gas-solid separator.

[0009] Preferably, the top opening of the spiral pipe is inclined to the inner cavity wall of the cylinder, and the bottom end of the spiral pipe is in communication with the inner cavity of the inner tube.

[0010] Preferably, the stabilizing disc is fixed in the middle part of the cylinder, and the feeding pipe is arranged on the top of the stabilizing disc.

[0011] Preferably, the scraper is arranged at the bottom of the conical plate, and the wall of the scraper is attached to the bottom wall of the conical plate.

[0012] Preferably, the number of through holes on the surface of the conical plate is several, and the diameter of the through holes on the surface of the conical plate gradually increases from the inner ring to the outer ring.

[0013] Preferably, the bottom wall of the stirring plate is attached to the top wall of the conical plate, and the stirring plate is arranged on the top of the stirring plate.

[0014] Preferably, one end of the universal joint is fixedly connected with the top of the rotating rod, and the stirring plate and the stirring plate are arranged between the conical plate and the support rod.

[0015] The technical effects and advantages of the utility model are as follows:

[0016] 1. The utility model discloses a spiral pipe is used to make the gas in the inner tube enter the inside of the cylinder, and the gas in the cylinder is rotated, so that the input raw material is rotated, the time of the raw material staying in the cylinder is increased through the conical plate, the blocky material can be blocked in the inside of the through hole through the block of the through hole, and the blocky material is scattered through the rotation of the scraper and the poking plate, and when being located at the top of the conical plate, the blocky material falls on the top of the conical plate due to the reduction of the upward force of the gas at the top of the conical plate, and the blocky material is scattered through the poking of the poking plate, so that the drying quality and effect are improved.

[0017] 2. The utility model discloses a rotating rod is used to drive the stirring plate to stir, and the airflow and the raw material at the top of the conical plate are stirred, so that the uniformity of drying is further improved, the drying quality is improved, and the stability of the rotation of the rotating rod is improved through the supporting rod, the time of the raw material staying in the cylinder is increased through the conical plate, and the raw material with high humidity at the top of the conical plate falls on the surface of the conical plate and is dried again, so that the drying quality is further improved.

[0018] Through the mutual influence of the above-mentioned multiple effects, the time of the raw material staying in the cylinder is increased, the drying quality is improved, the upward force of the gas is reduced at the same time of drying, the raw material with high humidity or the blocky material falls on the surface of the conical plate, is stirred and scattered, and the drying quality and effect are improved. DRAWINGS

[0019] Figure 1 It is the whole structure schematic diagram of the utility model.

[0020] Figure 2 It is the cross section structure schematic diagram of the utility model.

[0021] Figure 3 It is the connection cross section structure schematic diagram of the utility model air inlet pipe and inner tube.

[0022] Figure 4 It is the split structure schematic diagram of the utility model rotating rod and conical plate.

[0023] The drawing mark is: 1, the cylinder;2, the support leg;3, the air inlet pipe;4, the inner tube;5, the stabilizing disc;6, the perforated plate;7, the spiral pipe;8, the feeding pipe;9, the conical plate;10, the through hole;11, the rotating rod;12, the scraper;13, the poking plate;14, the stirring plate;15, the universal coupling;16, the supporting rod;17, the motor;18, the air outlet pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] As attached Figures 1-4 The multi-stage processing aluminum hydroxide liquid-solid separation and drying device shown includes a cylinder 1, an air inlet pipe 3 for inputting high-temperature hot air is fixedly connected to the bottom of the cylinder 1, and high-temperature gas is injected into the inner cavity of the cylinder 1 through the air inlet pipe 3. An inner tube 4 is fixedly connected to the position corresponding to the air inlet pipe 3 at the bottom of the inner cavity of the cylinder 1, and the gas flow rate entering the cylinder 1 is reduced by the inner tube 4. A stabilizing disk 5 is fixedly sleeved on the top of the inner tube 4, and the stability of the inner tube 4 is improved by the stabilizing disk 5. A spiral tube 7 is fixedly connected to three sides of the inner tube 4, and one end of the spiral tube 7 passes through the wall of the stabilizing disk 5. The gas inside the inner tube 4 enters the interior of the cylinder 1 through the spiral tube 7, so that the gas inside the cylinder 1 generates a rotating force, which facilitates the input raw material to generate a rotating force, generates dispersion and rotation at the same time, and improves the drying effect;

[0026] The top inner cavity of the inner tube 4 is fixedly connected with a porous plate 6, the middle side of the cylinder 1 is connected with a feed pipe 8, the top of the cylinder 1 is connected with an outlet pipe 18, the top side of the cylinder 1 is fixedly connected with a motor 17, the output end of the motor 17 is connected with a universal coupling 15, the top of the inner cavity of the cylinder 1 is fixedly connected with a support rod 16 and a cone plate 9, the support rod 16 is arranged on the top of the cone plate 9, the porous plate 6 is used to improve the uniformity of gas input, and the raw material is conveniently input into the interior of the cylinder 1 through the feed pipe 8, and is passed through the outlet pipe 1 8 facilitates the discharge of gas and raw materials, and at the same time, the cone plate 9 increases the time the raw materials stay inside the cylinder 1, so that the raw materials with higher humidity at the top of the cone plate 9 fall on the surface of the cone plate 9 for secondary drying. By starting the motor 17 to control the universal coupling 15 to drive the rotating rod 11 to rotate, the stirring plate 14, the toggle plate 13, and the scraper 12 can be rotated to scrape the raw materials on the surface of the cone plate 9, further improving the uniformity of drying and the drying effect. The support rod 16 is used to improve the rotation stability of the rotating rod 11;

[0027] The surface of the conical plate 9 is provided with through holes 10, the middle part of the conical plate 9 is provided with a rotating rod 11, the bottom end of the rotating rod 11 is fixedly connected with a plurality of scrapers 12, the middle part of the rotating rod 11 is fixedly connected with a plurality of push plates 13 and stirring plates 14, the edge raw materials can be input to the top of the conical plate 9 through the through holes 10, the impact force of the gas at the top of the conical plate 9 is reduced through the through holes 10 on the surface of the conical plate 9, the drying quality is further improved, and the rotating rod 11 drives the rotation of the scrapers 12, the push plates 13 and the stirring plates 14, the uniformity of stirring and drying is improved, and the use effect is improved.

[0028] As shown in the accompanying drawings, Figures 1-4 The inner cavity diameter of the inner tube 4 is larger than the inner cavity diameter of the air inlet pipe 3, the top end of the inner tube 4 is higher than the top end of the spiral pipe 7, the bottom of the barrel 1 is fixedly connected with a plurality of supporting legs 2, the top end of the air outlet pipe 18 is connected with a gas-solid separator, the top opening of the spiral pipe 7 is inclined to the inner cavity wall of the barrel 1, the bottom end of the spiral pipe 7 is in communication with the inner cavity of the inner tube 4, the stabilizing disc 5 is fixed in the middle part of the barrel 1, the feeding pipe 8 is arranged at the top of the stabilizing disc 5, the scraper 12 is arranged at the bottom of the conical plate 9, the wall of the scraper 12 is attached to the bottom wall of the conical plate 9, the number of the through holes 10 on the surface of the conical plate 9 is several, the diameter of the through holes 10 on the surface of the conical plate 9 gradually increases from the inner ring to the outer ring, the bottom wall of the push plate 13 is attached to the top wall of the conical plate 9, the stirring plate 14 is arranged at the top of the push plate 13, one end of the universal joint 15 is fixedly connected with the top of the rotating rod 11, the push plate 13 and the stirring plate 14 are arranged between the conical plate 9 and the supporting rod 16, the high-speed gas entering the inner tube 4 through the air inlet pipe 3 can reduce the impact force of the gas output through the inner tube 4, and the gas input through the spiral pipe 7 can make the raw materials between the conical plate 9 and the stabilizing disc 5 in the barrel 1 generate a rotating force, and the inner tube 4 sprays gas through the perforated plate 6, and the force of the gas sprayed by the inner tube 4 is reduced through the perforated plate 6;

[0029] The gas drives the raw materials to rotate and move upward, and at the same time, the gas dries the raw materials, so that the raw materials and the gas enter the top of the conical plate 9 through the through holes 10, the upward force of the gas is reduced through the through holes 10, the raw materials that have not been dried fall on the surface of the conical plate 9, and after drying, the raw materials are discharged through the air outlet pipe 18 and input into the gas-solid separator for gas-solid separation, so that the multi-stage drying treatment is completed.

[0030] The working principle of the utility model is as follows: when in use, high-temperature gas is input into the inner part of the barrel 1 through the air inlet pipe 3, raw materials are input into the inner part of the barrel 1 through the feeding pipe 8, the gas is input into the inner part of the barrel 1 through the inner tube 4 and the spiral pipe 7, the gas in the barrel 1 drives the raw materials to generate a rotating upward force, the contact time of the raw materials and the gas is improved, the heating and drying effect on the raw materials is improved, and the raw materials pass through the block of the conical plate 9, so that the drying time is further prolonged;

[0031] The motor 17 is started at the same time of drying, and controls the rotating rod 11 to drive the scraper 12, the pusher 13 and the stirring plate 14 to rotate, so as to scrape the two sides of the conical plate 9, improve the input effect of the raw materials, and stir the gas and solid in the cavity on the top of the conical plate 9, further improve the uniformity and quality of drying, and make the dried raw materials and gas input into the gas-solid separator through the gas outlet pipe 18 to complete the gas-solid separation.

[0032] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-stage processing aluminum hydroxide liquid-solid separation drying device, comprising a cylinder (1), characterized in that: The bottom of the cylinder (1) is fixedly connected with an air inlet pipe (3) for inputting high-temperature hot air, the bottom of the inner cavity of the cylinder (1) is fixedly connected with an inner pipe (4) corresponding to the position of the air inlet pipe (3), the top end of the inner pipe (4) is fixedly sleeved with a stabilizing disc (5), three sides of the inner pipe (4) are fixedly connected with a spiral pipe (7), and one end of the spiral pipe (7) penetrates through the wall of the stabilizing disc (5). The top end of the inner pipe (4) is fixedly connected with a perforated plate (6), the middle side of the cylinder (1) is connected with a feeding pipe (8), the top of the cylinder (1) is connected with an air outlet pipe (18), one side of the top of the cylinder (1) is fixedly connected with a motor (17), the output end of the motor (17) is connected with a universal joint (15), the inner cavity top of the cylinder (1) is fixedly connected with a supporting rod (16) and a conical plate (9), and the supporting rod (16) is arranged at the top of the conical plate (9). A plurality of scraper plates (12) are fixedly connected to the bottom end of the rotating rod (11), a plurality of poking plates (13) and a stirring plate (14) are fixedly connected to the middle portion of the rotating rod (11).

2. The multi-stage processed aluminum hydroxide liquid-solid separation drying device according to claim 1, characterized in that: The inner cavity diameter of the inner pipe (4) is greater than the inner cavity diameter of the air inlet pipe (3), the top end of the inner pipe (4) is higher than the top end of the spiral pipe (7), the bottom of the cylinder (1) is fixedly connected with a plurality of supporting legs (2), and the top end of the air outlet pipe (18) is connected with a gas-solid separator.

3. The multi-stage processed aluminium hydroxide liquid-solid separation drying device according to claim 1, characterized in that: The top end opening of the spiral pipe (7) is inclined to the inner cavity wall of the cylinder (1), and the bottom end of the spiral pipe (7) is in communication with the inner cavity of the inner pipe (4).

4. The multi-stage processed aluminium hydroxide liquid-solid separation drying device according to claim 1, characterized in that: The stabilizing disc (5) is fixed in the middle portion of the cylinder (1), and the feeding pipe (8) is arranged at the top of the stabilizing disc (5).

5. The multi-stage processed aluminium hydroxide liquid-solid separation drying device according to claim 1, characterized in that: The scraper plates (12) are arranged at the bottom of the conical plate (9), and the wall of the scraper plates (12) is attached to the bottom wall of the conical plate (9).

6. The multi-stage processed aluminium hydroxide liquid-solid separation drying device according to claim 1, characterized in that: The number of the through holes (10) on the surface of the conical plate (9) is several, and the diameters of the through holes (10) on the surface of the conical plate (9) gradually increase from the inner ring to the outer ring.

7. The multi-stage processed aluminium hydroxide liquid-solid separation drying device according to claim 1, characterized in that: The bottom wall of the poking plate (13) is attached to the top wall of the conical plate (9), and the stirring plate (14) is arranged at the top of the poking plate (13).

8. The multi-stage processed aluminium hydroxide liquid-solid separation drying device according to claim 1, characterized in that: One end of the universal joint (15) is fixedly connected to the top of the rotating rod (11), and the poking plate (13) and the stirring plate (14) are arranged between the conical plate (9) and the supporting rod (16).

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